Home / 2,557.36-3,529.11-1,423.02

Finding the Fourth Proportional to 2,557.36, 3,529.11 and 1,423.02

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Solution

The fourth proportional to 2,557.36, 3,529.11 and 1,423.02 is: 1,963.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.36 : 3,529.11 = 1,423.02 : x
  2. Step 2: Convert to fraction form
    2,557.36/3,529.11 = 1,423.02/x
  3. Step 3: Cross multiply
    2,557.36x = 3,529.11 × 1,423.02
  4. Step 4: Simplify right side
    2,557.36x = 5,021,988.83
  5. Step 5: Solve for x
    x = 5,021,988.83/2,557.36
  6. Step 6: Final answer
    x = 1,963.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.